package blog.servlets;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.blog.logic.UserLogic;

/**
 * Servlet implementation class ValidLoginServlet
 */
@WebServlet("/ValidLoginServlet")
public class ValidLoginServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ValidLoginServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doProcess(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doProcess(request, response);
	}
	
	private void doProcess(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		String name = request.getParameter("name");
		
		String text = "";
		if(UserLogic.getInstance().getUser(name) != null) {
			text = "Login zajety.";
			int i = 1;
			while(UserLogic.getInstance().getUser(name + i) != null) {
				i++;
			}
			text += " Proponujemy: " + name + i;
		}
		
		PrintWriter out = response.getWriter();
        out.write(text);
		
	}
	
	

}
